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2x+4y =20

3x-2y=8

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Hilalmelekrans

2x+4y=20

6x-4y=16  4y ler gider 8x=36   x=4   xe 4 yazarız y yi buluruz . 2.4+4y=20 4y=12  y=3

2x+4y =) 20


2/ 3x-2y =) 8

 

2x+4y =) 20

6x-4y =) 16 taraf tarafa toplama.....

 

8x =) 36

x =) 4,5

y =) 2,75

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